Singer Madonna will now expand her teen clothing range ‘Material Girl’ by including swimwear and lingerie.

The 52-year-old singer launched the range some time back with her 13-year-old daughter Lourdes.

‘We’re focused on rolling Material Girl out into additional categories, including swim and intimates and expanding the dress assortments. We launched footwear with ballet flats this season but we’re going to expand into a full footwear collection going forward. It’s all under discussion,’ contactmusic.com quoted a spokesperson for the line as saying.

The collection, which offers clothes, footwear, handbags, jewellery and accessories, modelled by Gossip Girl star Taylor Momsen, is available at US store Macy’s.

Madonna is known for being tough, and her publicist, Liz Rosenberg, is apparently just as tough. She gave strict instructions to reporters at Wednesday’s “Material Girl” fashion launch at Macy’s. What happened to one reporter who chose to disobey is the stuff of legend.

Rosenberg told reports they could each ask three questions of Madonna and her daughter Lourdes at the “Material Girl” event; and the questions had to be fashion related. According to reporters on scene, the “fashion-only” rule was to keep the press from asking about her newly arrested stalker.

Well, since reporters are known for being oh-so-obedient, one reporter from “The Insider” decided to overstep her bounds, and ask a non-fashion question. The question had nothing to do with Madonna or her stalker, though. The reporter asked, “What do you think about Ashton and Demi breaking up?”

Cheeky reporter!

According to witnesses, Madonna’s publicist “slapped the microphone out of the reporter’s hand.” Rosenberg even went so far as to point “at the reporter and [say], ‘Bad girl!’”

Q: How did you find Madonna for this film?
A: Madonna lived down the street from me, so she wasn’t “Madonna,” in quotes. I knew her from people who were in the downtown music scene. We started to audition more up-and-coming actresses who had done some films -– people like Ellen Barkin and Melanie Griffith and Jennifer Jason Leigh and Kelly McGillis, who had just made one or two movies and were getting known. But even though the film is a fairy tale, in a sense, it needed to be grounded in some kind of authenticity. We didn’t want actors putting on costumes and playing downtown.

Q: You wanted someone who genuinely embodied it, rather than an actor who would be playing at it or pretending it?
A: Right. And she hadn’t really done a movie before. She’d played in a band in the background of “Vision Quest,” whatever. But it wasn’t really an acting role. I hoped that because she is a performer and she had such an interesting persona, I could capture that on film somehow. And that does involve a lot of acting. People sometimes think, “Oh, it’s just being.” But it’s not. When you have to say lines and hit marks and get your lighting and repeat it 20 times from different angles, it’s acting.

Q: Given her inexperience, did you have to make a case for casting her in the film?
A: Well, yes. She had to do a bunch of screen tests. But it was the early days of MTV, and she happened to have a video that got a lot of rotation, because there just weren’t a lot of music videos at that time. I think it was for “Lucky Star.” So the the Orion people out in L.A. saw that and liked the way she looked. She was also helpful in auditions for the actor that was going to play her boyfriend. Somewhere, in a carton in my basement, I have Madonna and Bruce Willis doing an early screen test for that.